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Two endocardial thickenings—anterior and posterior—develop in the bulbus cordis and unite to form a short septum; this joins above with the aortic septum and below with the ventricular septum. The septum grows down into the ventricle as an oblique partition, which ultimately blends with the
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Two distal ridge-like thickenings project into the lumen of the tube: the truncal and bulbar ridges. These increase in size, and ultimately meet and fuse to form a septum (
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is a structure that is present during embryonic development. It is an arterial trunk that originates from both ventricles of the heart that later divides into the
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respectively). The cranial end of the bulbus cordis (also known as the conus cordis) gives rise to the aorta and pulmonary trunk with the truncus arteriosus.
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ventricular septum in such a way as to bring the bulbus cordis into communication with the pulmonary artery, and through the latter with the sixth pair of
237:), which takes a spiral course toward the proximal end of the truncus arteriosus. It divides the distal part of the truncus into two vessels, the
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222:. The caudal end of the bulbus cordis gives rise to the smooth parts (outflow tract) of the left and right ventricles (aortic vestibule &
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368:. In Ungerleider, Ross M.; Nelson, Kristen; Cooper, David S.; Meliones, Jon N.; Jacobs, Jeffrey (eds.).
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245:, which lie side by side above, but near the heart the pulmonary artery is in front of the aorta.
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is used to diagnose this condition. Other pathologies of the truncus arteriosus include
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Knowledge articles incorporating text from the 20th edition of Gray's
Anatomy (1918)
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appear in the proximal part of the truncus arteriosus in the region of the future
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256:; the manner in which these are related to the aortic septum is described below.
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Failure of the truncus arteriosus to close results in the condition known as
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452:"Truncus Arteriosus Imaging: Overview, Radiography, Computed Tomography"
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Le, T., Bhushan, V., et al. 'First Aid for the USMLE STEP1'. 2009.
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Liver with the septum transversum. Human embryo 3 mm. long.
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of about twenty-four days. (Truncus arteriosus visible at top.)
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First Aid for the USMLE Step 1: 2010 20th
Anniversary Edition
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First Aid for the USMLE Step 1: 2010 20th
Anniversary Edition
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466:"Truncus arteriosus - Diagnosis and treatment - Mayo Clinic"
372:(3rd ed.). Philadelphia: Elsevier. pp. 661–669.
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Illustration of truncus arteriosus in a fully formed heart
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438:"Truncus Arteriosus | Pediatric Echocardiography"
214:. The truncus arteriosus gives rise to the ascending
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145:arteriosus_by_E5.11.1.8.1.0.4 E5.11.1.8.1.0.4
49:Diagrams to illustrate the transformation of the
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370:Critical Heart Disease in Infants and Children
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485:Le, Tao; Bhushan, Vikas; Vasan, Neil (2010).
402:Le, Tao; Bhushan, Vikas; Vasan, Neil (2010).
229:This makes its appearance in three portions.
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364:Jaggers, James; Cole, Charles R. (2019).
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714:Protein signalling in heart development
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337:This article incorporates text in the
16:Structure during embryonic development
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545:Description and diagram at umich.edu
307:. This is often just referred to as
973:Embryology of cardiovascular system
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815:Vascular remodelling in the embryo
317:transposition of the great vessels
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646:Primary interventricular foramen
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493:The McGraw-Hill Companies, Inc.
410:The McGraw-Hill Companies, Inc.
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319:(arteries in this case), and
301:persistent truncus arteriosus
526:- Stanford Children's Health
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681:Primary interatrial foramen
345:of the 20th edition of
206:The truncus arteriosus and
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366:"55. Truncus Arteriosus"
61:. B. Bulbus cordis. RV.
776:Posterior cardinal vein
709:Aorticopulmonary septum
305:congenital heart defect
235:aorticopulmonary septum
212:aorticopulmonary septum
771:Anterior cardinal vein
661:Atrioventricular canal
164:Anatomical terminology
781:Common cardinal veins
540:Overview at mcgill.ca
295:Clinical significance
116:Cardiovascular system
651:Endocardial cushions
250:endocardial cushions
617:Primitive ventricle
580:Development of the
321:tetralogy of Fallot
210:are divided by the
925:Vitelline arteries
889:Inferior vena cava
656:Septum intermedium
607:Truncus arteriosus
582:circulatory system
530:Embryology at UNSW
524:Truncus Arteriosus
454:. 16 October 2021.
309:truncus arteriosus
182:truncus arteriosus
55:Truncus arteriosus
22:Truncus arteriosus
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901:Ductus arteriosus
869:Fetal circulation
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642:Atrioventricular
636:Chamber formation
506:978-0-07-163340-6
423:978-0-07-163340-6
379:978-1-4557-0760-7
202:Heart development
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909:Umbilical artery
897:Pulmonary artery
849:Connecting stalk
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313:Echocardiography
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254:semilunar valves
243:pulmonary artery
224:conus arteriosus
170:edit on Wikidata
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104:pulmonary artery
89:Cardiogenic area
71:Pulmonary artery
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63:Right ventricle
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33:Heart of human
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885:Ductus venosus
881:Umbilical vein
877:umbilical cord
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67:Left ventricle
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791:Lymph vessels
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748:Aortic arches
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534:Notes/heart3b
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743:Dorsal aorta
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471:Mayo Clinic
122:Identifiers
962:Categories
799:Lymph sacs
753:Aortic sac
327:References
200:See also:
495:pp.
412:pp.
303:, a rare
196:Structure
85:Precursor
916:yolk sac
859:Placenta
854:Yolk sac
735:Arteries
343:page 514
218:and the
188:and the
952:Anatomy
844:Chorion
727:Vessels
667:Atrial
491:. USA:
408:. USA:
133:D014338
79:Details
938:Portal
503:
420:
376:
351:(1918)
111:System
65:. LV.
59:Atrium
57:. Au.
53:. Ao.
35:embryo
905:Aorta
893:Heart
808:Other
763:Veins
702:Other
590:Heart
341:from
248:Four
239:aorta
216:aorta
186:aorta
168:[
157:70301
100:Aorta
69:. P.
501:ISBN
418:ISBN
374:ISBN
241:and
180:The
128:MeSH
497:123
414:123
152:FMA
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140:TE
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172:]
73:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
